Pipe-coupling.



,J. H. TAYLOR.

PIPE COUPLING.

APPLIOATION 21mm NOV. 22, 1909.

1,078,009. I Patehted N0v.11,1913.

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" Spe ification ofmetters Based Nei 'i; 1

To allwhomitmay-concemv I Be it known that/I, Janna-Harm Tame,- acitizen ofthe' United Statesgresiding Chicago, in the county of andStateof 5 Illinois have invented a; certain new, and useful improvementGouplings, of which the following isa f 1; clear,- concise, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification. My invention relates to pipe couplings and:has particular-reference to a form. of couplin which is adapted to beused with la e pipes or; tubes constrnctedofmetali n couplings orjoints;which have been made in metallic pipes in the past one of the. greatestobjections has been that no adequate means was provided to prevent thetwo pipes which were joined, from being pulled apart inv case excessivepressure was exerted.

According to my improved construction the inner pipe which forms partof'the joint is provided with an annular projection which fits withinthe socket which. is pro? vided onthe'end ofv its fellow ipeforming thejoint. This socket is'pre erably made with an outer portion, the wall ofwhich is parallel with the main axis of the ipe, and

80 a second portion which connects t is outer -part with the main wallof the-pipe. The annular projection provided on the second pipe the endof which fits Within this socket, is,preferably provided with a surfacewhich 3'5"is parallel with the portion of the socket which connects themain part of the pipe with the outer portion of the socket which isparallel with the main axis of the pipe. In this way a good joint isformed when the end of the pipe having the annular projection is forcedwithin the socket end of its companion pipe, and packing may be placedwithin the socket on either side of t e annular projection, although Iprefer to place this packing on the side awa from the end of the pipe. Aring is provi ed on the first pipe which abuts against the projectingsocket end, and a second ring is provided on the second pipe, this ringbeing provided with an abutment which is adapted to project into theannular space between the second pipe and the wall of the socket of thefirst ipe. When packing is placed in this annuiiir space it is evidentthat the second or follower ring may be forced against this packing bymeans of suitable bolts which omineoti the follower ringwithtlieclamping and' thepaoking 'ficmrns'a tight jo nt,

and at i'the-sameitime the pipes-are absw l'utely preventedj from 1becoming? separated from each*oflher-.-

Afocordingi tothe construction of my invention, asmerepressu're-is-exerted on the packing by means of the fbllewer ring, the

two pipes whjichform the j oint' are drawn more tightly together, and onacoount of 'the annular'projectionon the inner-of'the two pipesitbecomes-quite impossibleto separate the pipes exerting longitudinalpressure in a direction awayfromthe joint. The greater suchlongitudinalpressure which is so exerted, the more firmly thepacking-material willbe oompressed between the inner portion offthesocket of't he-pipe forming the outer art ofthe joint, the-annularprojection 0 the pipe forming the inner part of the joint, and theabutment projectingv from thefollower ring.- These and'otheradvantagesofmy invention-will becomemore apparent by reference to the accompanyingdrawings, in which- Figure 1; is a. venticall longitudinali section 2-2of Fig. 1.

The pipe 1 is provided with a V-shaped annular projection 2. Thisprojection is formed of metal which has the same thickness as the mainportion of the 'pipe and consists of an angular portion 2 which is awayfro-m, and a second angular portion 2 which is adjacent to, the end ofthe pipe. The pipe 3 which is to be joined to the pi e 1 is providedwith a socket 4, this socket eing made up of an angular annular portion5, and a second annular portion 6,-whichis preferably parallel to themain axis of the pipe '3. The metal forming this-socket is preferably ofthe same thickness as the main portion of the ipe 3. The portion 5 ofthe socket 4 is pre erably made parallel with the portion 2* of theannular projection 2, so that when the two pipes are placed together atight fit is thus effected. A ring of packing material 7 is placedwithin the socket 4, occupying a position between the portion 6 of thepipe 3 and the portion 2 of the annular projection 2, and extendingslightly along the main wall of the pipe 1.

A clamping ring 8 is provided on the pipe 3, this ring being providedwith an annular groove 9, so that the ring 8 is allowed to :throngh theparts which form the coupling or joints, and: Fig. 2' is a section onthe line 8 and are provided with a number of bo t nuts 13, 13. It isevident packing ring 7, and

holes, as shown'in Fig. 2, and through these holes pass the bolts 12,12, provided with that as the nuts the abutment portion be forcedagainst the a tight joint will be time the portion 2" of 13, 13 arescrewed up, 11 of the ring 10 will formed. At the same the annularprojection 2 is forced against the portion 5 of the socket 4. It is nowimpossible to separate the pipes 1 and 3, inasmuch as the V.-shapedannular projection 2 cannot be pulled'past the packing material 7 andthe abutment portion of the ring 10.

Moreover the ring Scan not be pulled over I the socket portion of thepipe 3 on account of its abutment against the socket of this pipe.

It is clear that many changes could be made in the detailed constructionof the parts which I have described without departing from, the spiritof my invention. For example, the end of the pipe 1, instead of beingformed into a V-shaped' projection,

can be. merely flared outwardly in order to form an abutment surface forthepackipgl;

Again, a tight joint may be formed without the use of any compressingthe portion 2 of the annular projection 2 agalnst the ortion 5 ofthesocket 4 by the action of the abutment portion 11 of the follower ring10.

What I claim as new and desire to cover by United States Letters Patentis:

In a pipe coupling, in combination, a pipe section enlarged at the endto form an obliqueshoulder and a. socket of otherwise uniform diameter,a secondpipe section having a V-shaped bead at the end thereof andhaving this end disposed in said socket so that one face of said beadwill lie against said obliqueshoulder, a clamping member disposed on theoutside of said last-named sectionand extending into said socket inalinement with said head, the face of the entering portion of saidclamping member and the other face of said bead being of substantiallythe same Width measured at right angles to the axis of the pipe, andmeans for mechanically connecting said clamping member to saidfirst-named section.

In Witness whereof, I hereunto subscribe my name this 15th day ofNovember, A. D. 1909.

JAMES HALL TAYLOR.

packing at all, by means of

